1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201
|
#include <stdio.h>
#include <sys/types.h>
#include <sys/stat.h>
#ifndef SYSV32
#include <sys/wait.h>
#endif
#include <sys/file.h>
#include <signal.h>
#ifndef SYSV32
#include <strings.h>
#include <termios.h>
#else /* if SYSV32 */
#include <string.h>
#include <termio.h>
#endif
#ifndef sgi
#include <sys/ttold.h>
#else
#include "my_sgtty.h"
#endif
#ifndef SYSV32
#include <sys/ttycom.h>
#endif
#ifdef SYSV32
#define O_ANYP 0
#define ECHOCTL 0
#define ECHOKE 0
#define IMAXBEL 0
#endif
char *line;
int p,t,realmask,mask,cc,pid;
char buf[132];
char **env,**environ;
#ifndef SYSV32
struct termios tr;
struct winsize ws;
#else /* if SYSV32 */
struct termio tr;
#endif
char *term="TERM=bwtrm";
#ifndef SYSV32
char *termcap="TERMCAP=bwtrm:do=^J:co#80:li#24:cl=50\\E[;H\\E[2J:le=^H:bs:am:cm=5\\E[%i%d;%dH:nd=2\\E[C:up=2\\E[A:ce=3\\E[K:cd=50\\E[J:so=2\\E[7m:se=2\\E[m:us=2\\E[4m:ue=2\\E[m:md=2\\E[1m:mr=2\\E[7m:mb=2\\E[5m:me=2\\E[m:rs=\\E[l\\E[?7h:ku=^@H:kd=^@P:kr=^@M:kl=^@K:kb=^H:ho=\\E[H:k1=^@;:k2=^@<:k3=^@=:k4=^@>:pt:sr=5\\E[M:vt#3:xn:sc=\\E[s:rc=\\E[u:";
#else
void
catcher()
{
exit(0);
}
#endif
main(argc,argv)
int argc;
char *argv[];
{
char *prog,c;
int got_term=0,i;
if (argc < 2)
{
(void) fprintf(stderr,"%s program ...\n",argv[0]);
exit(1);
}
for ( i = 0 ; environ[i] != NULL; i++);
env=(char **) malloc(sizeof(env)*(i+3));
for ( i = 0 ; environ[i] != NULL; i++)
{
env[i]=environ[i];
c=*(env[i]+5);
*(env[i]+5)='\00';
if ( strcmp("TERM=",env[i]) == NULL)
{
got_term = 1;
env[i]=term;
}
else
*(env[i]+5)=c;
}
if ( got_term == 0)
env[i++]=term;
#ifndef SYSV32
env[i++]=termcap;
#endif
env[i]=NULL;
environ=env;
prog=argv[1];
if ( (argv[1] = rindex(prog,'/')) == NULL)
argv[1] = prog;
else
argv[1]++;
for (c = 'p'; c <= 's'; c++) {
struct stat stb;
line = "/dev/ptyXX";
line[strlen("/dev/pty")] = c;
line[strlen("/dev/ptyp")] = '0';
if (stat(line, &stb) < 0)
break;
for (i = 0; i < 16; i++) {
line[strlen("/dev/ptyp")] = "0123456789abcdef"[i];
p = open(line, 2);
if (p > 0)
goto gotpty;
}
}
(void) fprintf(stderr,"Out of ptys\n");
exit(1);
gotpty:
line[strlen("/dev/")] = 't';
t = open(line, 2);
if (t < 0)
{
(void) fprintf(stderr,"Error opening pty\n");
exit(1);
}
{ struct sgttyb b;
(void) gtty(t, &b);
b.sg_flags = O_RAW|O_ANYP;
(void) stty(t, &b);
}
#ifndef SYSV32
(void) ioctl(t,TIOCGWINSZ,&ws);
ws.ws_row=25;
ws.ws_col=80;
(void) ioctl(t,TIOCSWINSZ,&ws);
(void) ioctl(t,TCGETS,&tr);
#else
(void) ioctl(t,TCGETA,&tr);
#endif
tr.c_lflag |= ISIG|ICANON|ECHOCTL|ECHOKE|ECHO|ECHOE;
tr.c_iflag |= IXON|IMAXBEL|ISTRIP|ICRNL|BRKINT|IGNPAR;
tr.c_iflag &= ~INPCK;
tr.c_cflag &= ~CS8;
#ifndef SYSV32
tr.c_cflag |= CS7;
#else /* if SYSV32 */
tr.c_cflag |= CS7|B38400|HUPCL;
#endif
tr.c_oflag |= OPOST|ONLCR;
#ifdef SYSV32
tr.c_cc[VINTR] = 0x03; /* ^c */
tr.c_cc[VERASE]= 0x7f; /* RUBOUT/DEL */
tr.c_cc[VKILL] = 21; /* ^u */
tr.c_cc[VEOF] = 0x04; /* ^d */
(void) ioctl(t,TCSETA,&tr);
#else
(void) ioctl(t,TCSETS,&tr);
#endif
pid = fork();
if (pid < 0)
{
(void) fprintf(stderr,"Unable to fork\n");
exit(1);
}
if (pid == 0) { /* Child */
(void) close(p);
for ( p=1 ; p <= NSIG; p++)
(void) signal(p,SIG_IGN);
p = getpgrp(0);
#ifndef SYSV32
(void) ioctl ( t,TIOCSPGRP,&p);
#endif
(void) dup2(t, 0), (void) dup2(t, 1), (void) dup2(t, 2);
(void) close(t);
execvp(prog, &argv[1]);
(void) fprintf(stderr,"Error activating image\n");
exit(1);
}
/* Parent */
(void) close(t);
#ifndef SYSV32
(void) signal(SIGTTOU,SIG_IGN);
(void) signal(SIGTTIN,SIG_IGN);
#else /* if SYSV32 */
(void) signal(SIGCLD,catcher);
#endif
realmask = (1 << p) | 1;
do
{
mask = realmask;
(void) select( p+1,&mask,NULL,NULL,NULL);
if ( (mask & 1 ) != 0 )
{
cc = read(1,buf,128);
if ( cc > 0 )
(void) write(p,buf,cc);
else
realmask = 0;
}
if ( (mask & ( 1 << p)) != 0 )
{
cc = read(p,buf,128);
if ( cc > 0 )
(void) write(1,buf,cc);
else
realmask = 0;
}
} while ( realmask == (( 1 << p) | 1) );
}
|